Issued Patents 2011
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7994737 | Drive circuit of DC/DC converter, light emitting apparatus and electronic device using the same | Yoichi Tamegai | 2011-08-09 |
| 7960955 | Power supply device, electronic device using the same, and semiconductor device | Tomoyuki Ito, Yoichi Tamegai, Koki Tamakawa | 2011-06-14 |
| 7948299 | Power supply apparatus | Tomoyuki Ito | 2011-05-24 |
| 7898217 | Charge control circuit | Satoru Nate | 2011-03-01 |
| 7894717 | Control circuit for self exciting DC/DC converter | Yoichi Tamegai, Satoru Nate | 2011-02-22 |
| 7884578 | Battery charging circuit with backflow prevention transistor, portable electronic device and semiconductor integrated circuit with backflow prevention transistor | Tetsuro Hashimoto | 2011-02-08 |
| 7876144 | Start-up circuit and start-up method | Tetsuro Hashimoto, Akihito Ito, Yoshikazu Sasaki | 2011-01-25 |
| 7868744 | Driving apparatus of mover | Kyoichiro Araki | 2011-01-11 |
| 7863833 | DC/DC converter control circuit, and power supply apparatus, light emitting apparatus and electronic device using the same | Yoichi Tamegai, Kyoichiro Araki | 2011-01-04 |